Range from the cheapest single storey extension £30800 (OCC Construction based in NE10) to the dearest single storey extension £46480 (Aynsley Windows & Conservatories LLP based in NE28).
Comparing extension builders estimates for fitting a downstairs toilet gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to build a single storey extension in Newburn by posting a job with HaMuch and we will send it to extension builders in Newburn.
27/02/2024
Single storey extension
Job | Estimate |
Underpinning a house | £17190 |
Build a two storey extension | £87535 |
Build a timber frame extension | £25690 |
Install a swimming pool | £80690 |
Cost to build a single storey extension | £43805 |
Cost to build a side return extension | £34015 |
Install an RSJ | £1890 |
Build an outbuilding | £9690 |
Build a mansard loft conversion | £51690 |
Cost of a loft conversion | £30846 |
Build a kitchen extension | £41690 |
Build a hip to gable loft conversion | £41690 |
Build a granny annexe | £86690 |
Build a garden office | £9690 |
Convert a garage | £15690 |
Build a new garage | £18190 |
Build a flat roof extension | £21690 |
Build a dormer loft conversion | £41690 |
Lay a concrete foundation | £5940 |
Convert a bungalow loft | £28690 |
Basement conversion cost | £34015 |